Vehicle information acquisition system including capability to obtain information in blind spots
First Claim
1. A vehicle information acquisition system for acquiring map information from an external source outside the vehicle, comprising:
- (a) storage means for storing specifying data of a blind area in which the map information is not acquirable by radio communication; and
(b) control means for acquiring, based on said specifying data, the map information of said blind area by requesting the external source for the map information when the vehicle approaches said blind area.
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Accused Products
Abstract
A system for acquiring map information reliably even when a vehicle is running in a blind area where the map information is not acquirable in real time, assisting the vehicle to keep running smoothly. In this system, necessary map information can be acquired from an external information center upon request via a communication device. Specifying data of a blind area in which the map information is not acquirable in real time is previously stored in a memory. Based on the specifying data stored in the memory and a current position of the vehicle detected as by GPS, a processor acquires the map information of the blind area from the information center upon request when the vehicle approaches the blind area. The acquired map information is stored in the memory and is read out for use in navigation.
34 Citations
13 Claims
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1. A vehicle information acquisition system for acquiring map information from an external source outside the vehicle, comprising:
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(a) storage means for storing specifying data of a blind area in which the map information is not acquirable by radio communication; and
(b) control means for acquiring, based on said specifying data, the map information of said blind area by requesting the external source for the map information when the vehicle approaches said blind area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle information acquisition system for acquiring map information from an external information center outside the vehicle, comprising:
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(a) a memory for storing specifying data of a blind area in which the map information is not acquirable by radio communication;
(b) a processor for acquiring, based on said specifying data, the map information of said blind area by requesting the external information center for the map information when the vehicle approaches said blind area; and
(c) a radio communication device for requesting, based on a signal from said processor, the external information center for the map information and for receiving the map information transmitted from the information center. - View Dependent Claims (11, 12, 13)
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Specification